Pointe Shoes For Big Feet

Hi!So, I've been googling but haven't really found anything, and I'm sorry if you find this offensive, BUT...My sister has since she was a child wanted to get into ballet. To sort of push her in the right direction (or at least nudge her into saying "it's never too late"), I was thinking of buying her ballerina shoes. Yes, those pink, silky pointe shoes.

...BUT. Her feet are quite broad and about a European 42 (26-26,5 cm) and I can't seem to find any shoes in her size. Is there a customization for these type of shoes, or anywhere I can actually find them? Maybe I'm just looking at the wrong places. I really don't want to buy her a size that's too small... That's more or less a nudge in the wrong direction. I'm terribly scared of screwing up and breaking her heart on christmas eve :(

Any help?

I appreciate every response, and I hope all of you have a lovely week!